import org.apache.tomcat.util.http.fileupload.InvalidFileNameException; //导入依赖的package包/类
/**
 * Checks, whether the given file name is valid in the sense,
 * that it doesn't contain any NUL characters. If the file name
 * is valid, it will be returned without any modifications. Otherwise,
 * an {@link InvalidFileNameException} is raised.
 *
 * @param fileName The file name to check
 * @return Unmodified file name, if valid.
 * @throws InvalidFileNameException The file name was found to be invalid.
 */
public static String checkFileName(String fileName) {
    if (fileName != null  &&  fileName.indexOf('\u0000') != -1) {
        // pFileName.replace("\u0000", "\\0")
        final StringBuilder sb = new StringBuilder();
        for (int i = 0;  i < fileName.length();  i++) {
            char c = fileName.charAt(i);
            switch (c) {
                case 0:
                    sb.append("\\0");
                    break;
                default:
                    sb.append(c);
                    break;
            }
        }
        throw new InvalidFileNameException(fileName,
                "Invalid file name: " + sb);
    }
    return fileName;
}
 

import org.apache.tomcat.util.http.fileupload.InvalidFileNameException; //导入依赖的package包/类
/**
 * Checks, whether the given file name is valid in the sense, that it
 * doesn't contain any NUL characters. If the file name is valid, it will be
 * returned without any modifications. Otherwise, an
 * {@link InvalidFileNameException} is raised.
 *
 * @param fileName
 *            The file name to check
 * @return Unmodified file name, if valid.
 * @throws InvalidFileNameException
 *             The file name was found to be invalid.
 */
public static String checkFileName(String fileName) {
	if (fileName != null && fileName.indexOf('\u0000') != -1) {
		// pFileName.replace("\u0000", "\\0")
		final StringBuilder sb = new StringBuilder();
		for (int i = 0; i < fileName.length(); i++) {
			char c = fileName.charAt(i);
			switch (c) {
			case 0:
				sb.append("\\0");
				break;
			default:
				sb.append(c);
				break;
			}
		}
		throw new InvalidFileNameException(fileName, "Invalid file name: " + sb);
	}
	return fileName;
}
 

import org.apache.tomcat.util.http.fileupload.InvalidFileNameException; //导入依赖的package包/类
/**
 * Checks, whether the given file name is valid in the sense,
 * that it doesn't contain any NUL characters. If the file name
 * is valid, it will be returned without any modifications. Otherwise,
 * an {@link InvalidFileNameException} is raised.
 *
 * @param pFileName The file name to check
 * @return Unmodified file name, if valid.
 * @throws InvalidFileNameException The file name was found to be invalid.
 */
public static String checkFileName(String pFileName) {
    if (pFileName != null  &&  pFileName.indexOf('\u0000') != -1) {
        // pFileName.replace("\u0000", "\\0")
        final StringBuilder sb = new StringBuilder();
        for (int i = 0;  i < pFileName.length();  i++) {
            char c = pFileName.charAt(i);
            switch (c) {
                case 0:
                    sb.append("\\0");
                    break;
                default:
                    sb.append(c);
                    break;
            }
        }
        throw new InvalidFileNameException(pFileName,
                "Invalid file name: " + sb);
    }
    return pFileName;
}
 

import org.apache.tomcat.util.http.fileupload.InvalidFileNameException; //导入依赖的package包/类
/**
 * Checks, whether the given file name is valid in the sense,
 * that it doesn't contain any NUL characters. If the file name
 * is valid, it will be returned without any modifications. Otherwise,
 * an {@link InvalidFileNameException} is raised.
 * @param pFileName The file name to check
 * @return Unmodified file name, if valid.
 * @throws InvalidFileNameException The file name was found to be invalid.
 */
public static String checkFileName(String pFileName) {
    if (pFileName != null  &&  pFileName.indexOf('\u0000') != -1) {
        // pFileName.replace("\u0000", "\\0")
        final StringBuffer sb = new StringBuffer();
        for (int i = 0;  i < pFileName.length();  i++) {
            char c = pFileName.charAt(i);
            switch (c) {
                case 0:
                    sb.append("\\0");
                    break;
                default:
                    sb.append(c);
                    break;
            }
        }
        throw new InvalidFileNameException(pFileName,
                "Invalid file name: " + sb);
    }
    return pFileName;
}